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Post Info TOPIC: What’s this 327 out of?


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What’s this 327 out of?


Deciphering the 327 the 67 Acadian 4 door.


Block casting 3914678
Head casting 3917291
Engine pad stamping V0410HH

I think Ive decoded it, but looking for input to verify what I think it is



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A Poncho Legend!

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I have some questions.

Do you have the casting date, likely on the passenger side rear, opposite the 3914678?

Do you have a casting date and valve size (intakes) on the heads?

And do you know for sure it's a 327? There is a 350 also with that casting number that is coded HH.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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I cant quite make out what the head casting is but it looks like G298

ill have to see if I can get the block casting date



-- Edited by Gillis on Sunday 9th of July 2023 05:52:34 PM

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No. Not sure if its 327. Only going off what previous owner said

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I'm betting with that casting date and those heads that it's an early 1969 300 horse 350.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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Heres a pic

im only guessing that its a G



-- Edited by Gillis on Sunday 9th of July 2023 06:07:03 PM

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A Poncho Legend!

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How about on the block? Is it clearer?

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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Cant get a good pic. Caked in crud. Cant get phone in to get a good pic anyway. I have feelers out on Stevesnovasite too and everything is pointing towards a 300 hp 350 with TH 400 from a full size chev. Either way I feel it is still a stout little motor

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A Poncho Legend!

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Yes, those 350/300's were a nice powerplant. Regardless of what it is, because of the heads all indications are its a great engine 327 or 350.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



Poncho Master!

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IMG_6976.jpeg

The lime book shows HH as a 327 in a Corvette or a 1969 passenger car 350.



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A Poncho Legend!

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It pretty much has to be the 1969 350 because the 678 casting block is a large journal block.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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Ill have to check the casting date on the back of the motor. The previous owner said the motor came from his best friend who owns Molands Corvettes (Blair Moland) in Bridgewater Nova Scotia and he thought the motor was a 327. Be interesting if it was a 327 Vette motor. Worth freshening up either way. It runs great with zero smoke and pulls great as well. Lumpy cam in it so it has a nice idle too.
Maybe this could be the candidate to have the tunnel Ram with 2 four barrels on it! Wait and see



-- Edited by Gillis on Sunday 9th of July 2023 09:04:38 PM

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A Poncho Legend!

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Gillis wrote:

Be interesting if it was a 327 Vette motor. 


 I don't see how it can be though because for sure it's a large journal block (because of the casting number) and the only HH stamping 678 block is the 350. Still, I wouldn't hesitate to enjoy it as is.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars



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It could be built as a large journal 327 using a 350 block. No way to tell for sure unless you pull it apart. I would just enjoy it as is. As Carl mentioned, the casting code is for a large journal block so it has to be 1968 or newer and the HH stamping code shows it originally was a 350 engine.

Paul

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I had the exact same HH 4678 block a few years back only it had a set of 041 heads it was dated as a 68 it was a 327

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I reckon it's a 1968 327 275hp if the heads are original. The heads are 1968 Saginaw cast fuelies, should be machined at Flint V8 along with the block. HH aside it can only be a 1968 327 275hp or 350 295hp if the valves are 1.94/1.5 - as pointed out above its a large journal block and the heads are 1968 only (except for those few that appeared late in 1967 model year). Not all the lists online are complete, common for some to be missing and this HH will be one of them. It may be one of those obscure numbers used with TH auto late in 1968.

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